Magnetocaloric Properties of Fe and Ge Doped Ni2Mn1−xCuxGa

Authors

Mahmud Khan, Southern Illinois University Carbondale
Shane Stadler, Southern Illinois University Carbondale
Naushad Ali, Southern Illinois University Carbondale

Comments

© 2007 American Institute of Physics

Published in Journal of Applied Physics, Vol. 101 No. 9 (2007) at doi: 10.1063/1.2712304

Abstract

The magnetocaloric properties of Fe and Ge doped Ni₂Mn_0.75Cu_0.25Ga Heusler alloys have been investigated. Using Ni₂Mn_0.75Cu_0.25Ga as the parent material, the Fe doped system (Ni₂Mn_1−x(Cu–Fe)_xGa) and a Ge doped system (Ni₂Mn_1−xCu_xGa_1−xGe_x) were studied. The manipulation of the Mn–Cu subsystem with Fe doping results in a decrease of the first order magnetostructural transition temperature, whereas the substitution of Ge for the Mn–Cu–Ga subsystems results in an increase of the magnetostructural transition temperature. In both cases the giant magnetocaloric effect is successfully preserved.

Recommended Citation

Khan, Mahmud, Stadler, Shane and Ali, Naushad. "Magnetocaloric Properties of Fe and Ge Doped Ni2Mn1−xCuxGa." (May 2007).